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Statistics Questions & Answers

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Showing Questions Taged with ANOVA :: Show All Questions

# QuestionHelpful RatingTags
426 There is an answer for this Question can individual scores of a 542 student be converted into percentage and fed into spss for anova and tukey test50Percent Score, ANOVA
386 There is an answer for this Question I am calculating the effectiveness of an educational intervention using a pretest-posttest design. I plan to run an ANCOVA on the scores with the pretest as the covariate. The six subcatagories on the test give the raw score of correct answers out of the total possible on each subcatagories. The overall score is given as a scaled score to equalize any differences on the pretest and posttest versions. The number of questions in each subcatagory and the overall test vary from the pretest and the posttest. Do I need to convert the scores to z scores to run the ANCOVA or can I use a percent score for each subcatagory and the scaled score for the overall score?Covariate, ANCOVA, ANOVA
343 There is an answer for this Question The following data show samples of three chain stores in three different locations in one town and the amount of dollars spent per customer per visit. At the 0.05 level, is there a difference in among the means? Store A Store B Store C 30 42 30 14 28 14 22 20 20 18 35 16 26 49 15 25 28 36 24100ANOVA
342 There is an answer for this Question In a one-way ANOVA, there are three treatments with n1 = 5, n2 = 6 and n3 = 5. The rejection region for this test at the 5% level of significance is____________-0ANOVA, F-statistic
203 There is an answer for this Question How to determine the sample size for comparing mulltiple parameters like Height , weight, Blood pressure , Blood parameters like blood glucose, total cholesterol, etc in two different populations?Sample Size, Power, ANOVA, t-test
194 There is an answer for this Question Why should you use ANOVA instead of several t tests to evaluate mean differences when an experiment consists of three or more treatment conditions?50Bonferroni correction, ANOVA, Type I Error
119 There is an answer for this Question Is is possible to modify a semantic differential scale into a 10-point scale? If so, should the data be treated as ordinal or interval? Bell Curve, ANOVA, Ordinal, Interval